【作者】 余立新； 熊惟皓； 丰平； 刘华平；

【Author】 YULi-xin, XIONG Wei-hao, FENG Ping, LIU Hua-ping(/. State Key Lab. Die & Mould TechnoL, Central China Univ. Sci. and Technol., Wuhan, Hubei 430074; 2. Kingdream Public Ltd. Co., Qianjiang, Hubei 433124, China)

【机构】 华中科技大学模具技术国家重点实验室； 江钻股份有限公司；

【摘要】 采用行星球磨和搅拌球磨方法对TiC-TiN-WC-Mo-Ni-C系金属陶瓷复合粉进行球磨实验,结果表明:搅拌球磨对复合粉的细化效果明显优于行星球磨,搅拌球磨24h可获得平均粒度为0.6μm的金属陶瓷复合粉。还研究了球磨过程中氧和铁元素对粉末的污染情况,并对烧结合金的组织、性能进行了分析,搅拌球磨可获得亚微米晶粒Ti(C,N)金属陶瓷,其性能优良。更多还原

【Abstract】 The effects of planetary ball milling and attritor milling processes on reducing TiC-TiN-WC-Mo-Ni-C composite powder particle sizes have been investigated in this paper. The experimental results showed that attitor milling is more effective than planetary ball milling in reducing particle sizes of composite powder because of its higher collision frequency. When milled with attitor for 24 h, the average particle size of the composite powder is about 0.6 μm. The levels of contamination caused by O2 and Fe have been analyzed, the microstructure and properties of sintered alloys have also been studied, and it is shown that the alloys manufactured by attritor milling have sub-microstructure, and the properties of submicron Ti(C, N)-based cermets are greatly ameliorated.更多还原